Placental Injection Study
Placental Injection Study - Related Videos
05:22
Ex vivo Culture of Human Placental Explants for the Study of Viral Transmission Across the Maternal-Fetal Interface
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2025
This protocol describes the preparation of human placental tissue explants cultured at an air-liquid interface for the study of viral infections.
12:17
The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo
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Cited by 18 •
2017
We present a detailed method to study human placental physiology in vivo at term. The method combines blood sampling from the incoming and outgoing vessels on the maternal and fetal sides of the placenta with ultrasound measurements of volume blood flow and placental tissue sampling.
07:04
Human Placental and Decidual Organ Cultures to Study Infections at the Maternal-fetal Interface
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Cited by 7 •
2016
A simple method to establish primary human placental (villous) and decidual organ cultures is described. Villous and decidual organ cultures are invaluable tools for studying pathogenesis at the human maternal-fetal interface. Infection with the facultative intracellular bacterium Listeria monocytogenes is demonstrated.
08:08
Determination of the Transport Rate of Xenobiotics and Nanomaterials Across the Placenta using the ex vivo Human Placental Perfusion Model
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Cited by 56 •
2013
The ex vivo dual recirculating human placental perfusion model can be used to investigate the transfer of xenobiotics and nanoparticles across the human placenta. In this video protocol we describe the equipment and techniques required for a successful execution of a placenta perfusion.
01:24
Gonadal and Placental Hormones
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2026
The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction. In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair growth — and...
FAQs
Injection site, volume, and experimental conditions determine what the study can reveal. A precisely selected site helps investigators relate distribution to particular placental compartments or associated vessels, while volume affects how much material enters the model. Holding these variables constant supports comparisons between conditions and makes transport or response findings easier to interpret.
Tracking movement between maternal and fetal circulations is central to interpreting placental exchange. Investigators can examine whether a material remains within placental tissue, distributes through compartments, or crosses toward the other circulation. That distinction helps separate local placental responses from findings relevant to fetal exposure, maternal exposure, or both.
The injected material should match the biological question. A tracer can reveal distribution, a drug can support exposure studies, gene-delivery material can be used to examine delivery strategies, and an experimental therapy can be assessed for potential effects. Comparing these material classes allows the same general approach to address different medical research aims.
Placental structure provides the framework for interpreting where an injected substance travels and how the tissue responds. Examining distribution across compartments can connect a visible pattern with placental organization, while response measurements can indicate whether the intervention changes tissue behavior. This structural perspective is especially relevant when studying altered placental function.
Planning begins with defining the research question and selecting the substance, injection site, volume, and experimental conditions accordingly. Investigators then introduce the material into placental tissue or associated vessels and track its distribution or response under the chosen model. The resulting observations are interpreted in relation to maternal-fetal exchange and study aims.
In medicine, this approach can inform studies of placental function, maternal-fetal exchange, drug exposure, developmental health, and pregnancy-related disease. It also provides a way to examine an intervention's potential safety and effectiveness before clinical testing. The value depends on connecting measured distribution or tissue responses to the specific medical question.